Nissan Silvia (S15) SpecR MAF to 3" Filter Adapter

This is a MAF adapter to get rid of your bulky Nissan Silvia (S15) air box. It is a simple MAF flange to 3" inlet. In my case I am using an older HKS Mushroom filter and have been running it for about 6 months from the date of this publishing. I printed mine in PETG and that withstands the temps of the engine bay quite well. If I were to do it again I may print in ABS instead so I can smooth it to make it look a bit more specific to the engine bay. This does not include any mounting tabs to keep it secured in the engine bay. My mushroom filter diameter is quite large and it wedges nicely into the available area. A smaller paper or cloth filter may require additional mounting inside the area.